| article html file updated | 6 February 2020 09:04 CET | Update | https://www.mdpi.com/2076-3425/4/2/356 |
| article html file updated | 7 May 2019 14:54 CEST | Update | - |
| article html file updated | 21 March 2019 16:38 CET | Update | - |
| article html file updated | 20 August 2015 05:57 CEST | Update | - |
| article html file updated | 18 July 2014 03:57 CEST | Original file | - |
| article xml file uploaded | 18 July 2014 03:57 CEST | Original file | https://www.mdpi.com/2076-3425/4/2/356/xml |
| article pdf uploaded. | 6 May 2014 15:44 CEST | Version of Record | https://www.mdpi.com/2076-3425/4/2/356/pdf |
